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connecting graph points using lines on cfchart

I need help trying to connect the graph points on a linear chart using cfchart.  The problem is that if the responseDates on my query are not concurrent.  It breaks.  The attached file shows what I'm talking about.  

The following is the code that I'm using
<!---The function being called on the cfc page--->
<cffunction name="ftnTrend" access="public" returntype="query">
			<cfargument name="fromDate" required="yes" type="date">
            <cfargument name="toDate" required="yes" type="date">
            <cfargument name="deptID" required="yes" type="numeric">
            <cfquery name="qDeptRpt" datasource="#application.dsn#">
                SELECT     o.orgname
                     ,acc.score AS accuracy
                     , tim.score AS timeliness
                     , tude.score AS attitude
                     , access.score as Accessibility
                    ,r.responseDate as responseDate
                FROM   responses r
                  INNER JOIN responseDepts dept ON dept.response_id = r.response_id
                  Inner JOIN org o ON o.orgid = r.orgid
                  LEFT JOIN responseDeptScores acc ON dept.respDept_id = acc.respDept_id
                                 and(acc.scoreType_id = 1)
                                 and(acc.score !=0)
                  LEFT JOIN responseDeptScores tim ON dept.respDept_id = tim.respDept_id
                       and (tim.scoreType_id = 2)
                       and (tim.score !=0)
                  LEFT JOIN responseDeptScores tude ON dept.respDept_id = tude.respDept_id
                      and (tude.scoreType_id = 3)
                      and (tude.score !=0)
                    LEFT JOIN responseDeptScores access ON dept.respDept_id = access.respDept_id
                                    and (access.scoreType_id = 4)
                                    and (access.score !=0)
 WHERE  dept.responseDate >= #createODBCdate(arguments.fromDate)#
                 AND      dept.responseDate <=  #createODBCdate(arguments.toDate)#
				And dept.deptType_id = <cfqueryparam cfsqltype="cf_sql_numeric" value="#arguments.deptID#">
            GROUP BY  o.orgname, acc.score, tim.score,tude.score, access.score, r.responseDate          
            <cfreturn qDeptRpt>

    <!---The Trend Line page--->
    <cfif isDefined("form.submit") and form.submit eq "submit">
                <cfinvokeargument name="fromDate" value="#form.fromdate#"/>
                <cfinvokeargument name="toDate" value="#form.todate#"/>
                <cfinvokeargument name="deptID" value="#form.selDeptID#"/>

<cfchart chartwidth="750" chartheight="400" yaxistitle="Score" xaxistitle="Weeks" showxgridlines="yes" showlegend="yes" scaleto="6" >
	<cfchartseries type="line" query="ftnTrendRet" valuecolumn="accuracy" itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="timeliness" itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="attitude" itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="Accessibility" itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#"></cfchartseries>

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1 Solution
I could be wrong. But you might be out of luck for MX7. It doesn't support the "isInterpolated" feature which controls that behavior.  For grins, does the same thing happen with a single series?

Ru1995Author Commented:
does the same thing happen with a single series?

I'm not sure what you mean by that? If you're referring to if I have just 1 cfchartseries tag then yes the same thing happens

Is this what you were referring too?

<cfchart chartwidth="750" chartheight="250" yaxistitle="Score" xaxistitle="Weeks" showxgridlines="yes" title="Attitude" scaleto="6" >
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="attitude" itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#" seriescolor="##3333FF">
> If you're referring to if I have just 1 cfchartseries tag then yes the same thing happens

Yeah, that's what I meant.  If you were using CF8+, I'd suggest trying the "isInterpolated" option mentioned in the link. But unfortunately it doesn't look like mx7 supports it.  I can't think of a clean way around it in the older version. You'd have to fill in the missing data points which is silly.
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Ru1995Author Commented:
OK well is there a way for me to display the response dates on the x axis?
> itemcolumn="#DateFormat(ftnTrendRet.responseDate,'mm/dd/yyyy')#">

Hmm.. I just noticed your itemcolumn looks wrong. The values are all the same and DateFormat() isn't doing what you think.  You'll have to format the dates in your sql.  "itemcolumn" should be the name of a column in your query.  

<!--- sample query  --->
<cfset ftnTrendRet = queryNew("")>
<cfset queryAddColumn(ftnTrendRet, "RESPONSEDATE ", listToArray("2011-08-01,2011-08-02,2011-08-03,2011-08-04"))>
<cfset queryAddColumn(ftnTrendRet, "accuracy", listToArray("4,5,0,1"))>
<cfset queryAddColumn(ftnTrendRet, "timeliness", listToArray("3,4,0,5"))>
<cfset queryAddColumn(ftnTrendRet, "attitude", listToArray("5,5,4,2"))>
<cfset queryAddColumn(ftnTrendRet, "Accessibility", listToArray("3,5,4,3"))>
<cfchart chartwidth="750" chartheight="400" yaxistitle="Score" xaxistitle="Weeks" showxgridlines="yes" scaleto="5" gridlines="6"  >
	<cfchartseries type="line" query="ftnTrendRet" valuecolumn="accuracy" itemcolumn="responseDate"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="timeliness" itemcolumn="responseDate"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="attitude" itemcolumn="responseDate"></cfchartseries>
    <cfchartseries type="line" query="ftnTrendRet" valuecolumn="Accessibility" itemcolumn="responseDate"></cfchartseries>

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Ru1995Author Commented:
Awesome it worked thank you
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